CHALL,
JOHN HUBLEY, Brooklyn, New York, was born in the city of Philadelphia, Pennsylvania, in 1872, son of John Hubley Schall and Mary Wallace Main, his
wife. He was educated in the Philadelphia public schools, Orwigsburg Academy, a New York preparatory school, a medical preparatory school, one year at
the Jefferson Medical of Philadelphia and three years at the Hahnemann Medical College and Hospital of Philadelphia, graduating at the latter in 1893.
In 1899 he settled in Brooklyn and has since practiced in that city. He also has taken post-graduate studies in Heidelberg and Vienna. His hospital
appointments, previous to going into private practice, have been as house surgeon to the Brooklyn Homťopathic Hospital, two years ; to the
Hahnemann Hospital, New York, eighteen months ; to Hahnemann Hospital, Philadelphia ; house surgeon to Fairmount Emergency Hospital, one
term ; assistant demonstrator of anatomy, Hahnemann Medical College, Philadelphia, one term ; consulting pathologist to the Memorial Hospital,
Brooklyn, 1900 ; consulting surgeon to Jamaica Hospital. He is a member of the New York State and Kings County Homťopathic Medical societies, the
Hahnemann Club of Brooklyn, the American Institute of Homťopathy, International Hahnemannian Union, the Academy of Pathological Science, Sons of the
Revolution, and Society of Colonial Wars.

Source : History of Homťopathy by William Harvey King
Copyright ę Sylvain Cazalet 2003